Cannot connect with IGMP enabled nor using DSL connection menu on Windows

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So here's the problem,After resetting the modem, all four lights lighted up. So, I configured the modem(192.168.1.1), entered my username and password, enabled IGMP(Since all the four lights were up) and Save/Reboot-ed it. And after it turned on completely, only 3 lights were present(INET wasn't on). Since I had configured it to use IGMP, I can't connect using the DSL connection menu on Windows. So, I reset the modem again, so that I can enter DSL user and pass on Windows and connect. But then, all 4 lights came up.And the same problem again. Can anyone help me with this?
 

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